Editing GM High Feature engine (section)

== 7.2L V12 ==
On March 21, 2007, ''[[AutoWeek]]'' reported that GM was planning to develop a 60-degree [[V12 engine|V12]] based on this engine family to power the top version of Cadillac's upcoming flagship sedan. This Cadillac would essentially have had two 3.6L High Feature V6s attached crankshaft-to-crankshaft and would have featured high-end technologies including [[Direct fuel injection|direct injection]] and [[cylinder deactivation]]. If this engine were developed, it would have displaced 7.2 liters, and produced approximately {{Convert|600|hp|kW PS|0|abbr=on}} and {{convert|540|lbft|Nm|0|abbr=on}} of torque. Development of the engine was reportedly being conducted in Australia by Holden, with a potential HSV or Statesman application.<ref name=AutoweekPR20070321>{{cite press release | title = AutoWeek Breaks Major Cadillac News in March 26 Issue | publisher = prnewswire.com | date= 2007-03-21 | url = http://www.prnewswire.com/cgi-bin/stories.pl?ACCT=104&STORY=/www/story/03-21-2007/0004550743&EDATE= | access-date=2009-01-04}}</ref>

In August 2008, GM announced that development of the V12 had been cancelled.<ref name=autospies20080821>{{cite news | title=Cadillac cancels plans for V12 XLKS flagship sedan | work=autospies.com | url=http://www.autospies.com/news/Cadillac-cancels-plans-for-V12-XLKS-flagship-sedan-33871 | date=2008-08-21 | access-date=2009-01-04}}</ref>